What is OOPS ?
O Object
O Oriented
P Programming
S Structure

OOPS is a concept based of 4 pillers.
1) Abstraction
2) Polymorphism
3) Encapsulation
4) Inheritance

OOPS is based on "REAL WORLD".

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There are 2 basic concepts in OOPS

a) Class
b) Object
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Ques : What is Class ?
Ans  : Class is Structure of Object.
           OR
       Class is BluePrint for Object
           OR
       Class is Prototype of Object
           OR
       Class is a Collection of Object.

Prototype : Whose type is alreday defined.

        All the objects of same class contain same property.May be values are different.


Ques : What is Object?
Ans  : Object is a basic run time entity in any object oriented system.

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